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The summer solstice is the day with the longest period of daylight and shortest night of the year in that hemisphere, when the sun is at its highest position in the sky. At either pole there is continuous daylight at the time of its summer solstice. The opposite event is the winter solstice. The summer solstice occurs during the hemisphere's ...
The lengths of time when the sun is up are longer around the summer solstice and shorter around the winter solstice, except near the equator. When the Sun's path crosses the equator, the length of the nights at latitudes +L° and −L° are of equal length. This is known as an equinox. There are two solstices and two equinoxes in a tropical year.
The summer solstice is actually the same thing as the "first day of summer," so it also takes place on Thursday, June 20. Specifically, it'll occur at 4:50 p.m. EST.
[5] [6] Under meteorological definitions, all seasons are arbitrarily set to start at the beginning of a calendar month and end at the end of a month. [5] This meteorological definition of summer also aligns with the commonly viewed notion of summer as the season with the longest (and warmest) days of the year, in which daylight predominates.
If you want to get precise, the Northern Hemisphere's summer solstice will commence the first day of summer 2019 at exactly 11:54 AM EDT. However, there are technically two summer solstices in a year.
All the times are given in UTC (roughly speaking, the time at Greenwich, ignoring British Summer Time). People living farther to the east (Asia and Australia), whose local times are in advance, see the astronomical seasons apparently start later; for example, in Tonga (UTC+13), an equinox occurred on September 24, 1999, a date on which the ...
Daylight saving time (DST), also referred to as daylight saving(s), daylight savings time, daylight time (United States and Canada), or summer time (United Kingdom, European Union, and others), is the practice of advancing clocks to make better use of the longer daylight available during summer so that darkness falls at a later clock time.
It is also common to start summer vacation on Midsummer day. For many families Midsummer is the time when they move to the countryside to their summer cottage by the sea or lake. Midsummer is also a Finnish Flag Day : the national flag is hoisted at 6 pm on Midsummer's Eve and flown throughout the night until 9 pm the next evening.